Fleece Performance 03-07 Dodge 5.9/6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans) Early Cummins 5.9 2015 Toyota 4Runner TRD Pro

2015 Toyota 4Runner TRD Pro

7L Powerstroke Fuel Contamination Kit XD514 today

Air Filter (Cotton Cleanable) For Intake Kits: 75-2557 Replacement Filters For your S&B Cold Air Intake are available with cotton (Cleanable) or dry (Extendable) filter media

2020 Ford F-250 Super Duty Lariat

2009 Chevrolet Tahoe LS

Fleece Performance 03-07 Dodge 5.9/6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans) Early Cummins 5.9 2015 Toyota 4Runner TRD ProIncreased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5. 9L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure. Our coolant bypass kit adds a secondary thermostat,